import java.util.*;
//不能导入一个具体的包
/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: GaoBo
 * Date: 2021-05-14
 * Time: 20:40
 */

public class Test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
    }
}
